US4932649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fan-type exercise bicycle with a handlebar friction assembly
Assignee: Individual
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Filing: 1989-09-22
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Granted: 1990-06-12
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Expires: 2009-09-22
Abstract
Abstract A fan-type exercise bicycle with adjustable resistance friction assemblies on the lower ends of its handlebars. Each friction assembly includes a knob with a bolt protruding from it, a two-piece casing, two friction pads and a friction plate which is clamped between the friction pads and the casing pieces. The bolt extends through the casing pieces and friction pads and through a curved slot in the friction plate. A threaded insert is fixed in a support stand of the fan-type bicycle. The threaded insert also protrudes slightly from the support stand so that the casing pieces are clamped between the knob and the threaded insert.
Inventors
- 👤 Paul P. C. Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:24
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/012; A63B21/00058; A63B21/00069; A63B21/40; A63B21/4041; A63B21/4049
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A fan-type exercise bicycle comprising a handlebar and handlebar friction assembly, said friction assembly comprising: a knob (8) with a bolt (81) protruding therefrom; two annular casing pieces (7), each said annular casing pieces (7) having a circular wall portion, a rim portion and a plurality of ribs (71); two annular friction pads (6), each said annular friction pad (6) being encompassed by said rim portion of each said annular casing piece (7); a friction plate (11) which is fixed to a bottom end of said handlebar (1), said friction plate (11) having a curved slot (111) thereon so that said bolt (81) is passable therethrough, said friction plate (11) being positioned between said friction pads (6); and a threaded insert (5) being fixed in a lower end of a support stand (4) for receiving said bolt (81), said bolt (81) being tightenable in said threaded insert (5) pushing said two annular friction pads (6) against said friction plate, wherein the friction assembly provides variable resistance to handlebar pivoting (11).
Claim 2
Dependent Claim
170 words
A fan-type exercise bicycle comprising a handlebar and handlebar friction assembly, said friction assembly comprising: a knob (8) with a bolt (81) protruding therefrom; two annular casing pieces (7), each said annular casing pieces (7) having a circular wall portion, a rim portion and a plurality of ribs (71); two annular friction pads (6), each said annular friction pad (6) being encompassed by said rim portion of each said annular casing piece (7); a friction plate (11) which is fixed to a bottom end of said handlebar (1), said friction plate (11) having a curved slot (111) thereon so that said bolt (81) is passable therethrough, said friction plate (11) being positioned between said friction pads (6); and a threaded insert (5) being fixed in a lower end of a support stand (4) for receiving said bolt (81), said bolt (81) being tightenable in said threaded insert (5) pushing said two annular friction pads (6) against said friction plate, wherein the friction assembly provides variable resistance to handlebar pivoting (11).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-06-11 | 1993-12-11 | 1994-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-11 | 1997-12-11 | 1998-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-11 | 2001-12-11 | 2002-06-12 | $7700.00 | Window Closed / Lapsed |